Gonococci selectively attach to certain epithelial cells by
A. pili.
B. flagella.
C. cilia.
D. actin bridges.
E. flagella AND cilia.
A.
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Referring to the above diagram of the brain, B
identifies which region?
a. hypothalamus b. thalamus c. cerebrum d. corpus callosum e. cerebellum
Which of the following is the predominant leaf form of environments where the growing season is very short or where nutrient availability severely constrains photosynthesis and plant growth?
A) winter-deciduous leaves B) drought-deciduous leaves C) broadleaf evergreen leaves D) needle-leaf evergreen leaves
A circadian rhythm has a period that approximates a(n) 12-hour cycle. Indicate whether the statement is true or false
This is the correct answer. In analyzing an outbreak of disease, the first thing is to identify the bacterial species involved. Then once you know the species you can move forward to determine if the outbreaks were all caused by the same strain. Which of the following tests can be used to help determine the species involved?
A) Phage typing B) PCR C) DNA fingerprinting D) Gram-staining